JSB Match Diabolo S100 Heavy Weight, .177 Cal. , 4.49MM, 0.535g, 8.26 gr, Wadcutter, 500 Pellets. JSB Match Heavy pellets are choice of ISSF World Champion 2010 -Italian shooter Niccolo Campriani. Heaviest Match pellets are a perfect choice for an air rifle, but according to JSB’s experience & tests they say that there are many air pistols which simply love them!These pellets are comparatively less popular in India than RWS R10 and also QYS in some states.Caliber 4,5mm/.177Head Size : 4.49mmWeight : 0.535gWeight (Grains) : 8.26grShape : Wadcutter NoseOne Tin Contains 500 Pellets